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Title : A scalable multicast key management scheme combined MARKS and TR-LKH
Author(s) : Z. Li, et al.
Filename : draft-li-marks-trlkh-00.txt
Pages : 13
Date : 2007-5-3
Several algorithms have been proposed to deal with the multicast key
management problem. An efficient multicast key management in the case of
large dynamic group with preplanned eviction is MARKS in which one
receiver's join or preplanned leave has no side effect on other
receivers. However, there is no effective mechanism in MARKS to expel a
malicious member dynamically. An improved MARKS in which a malicious
member can be expelled scalablely by rekeying an intermediate key is
introduced. And a two-layer Logical Key Tree based on coincident leave
time (called TR-LKH) which is used to maintain the intermediate key is
proposed here. The described approach has outstanding performance in
terms of scalability, where one member's join or preplanned leave has no
side effect on other members, furthermore, the number of rekeying
messages needed to expel a member depends little on the group size.
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